Finding the Fourth Proportional to 7,144.52, 10,719.81 and 3,853.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,144.52 : 10,719.81 = 3,853.78 : x
2. Step 2: Convert to fraction form
   7,144.52/10,719.81 = 3,853.78/x
3. Step 3: Cross multiply
   7,144.52x = 10,719.81 × 3,853.78
4. Step 4: Simplify right side
   7,144.52x = 41,311,762.58
5. Step 5: Solve for x
   x = 41,311,762.58/7,144.52
6. Step 6: Final answer
   x = 5,782.30